Yamaha-RX777-rec-sch1(1) 维修电路原理图.pdf
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1、2ABCDEFGHIJ13457RX-7776-Vin2XL3014MHzSW316STANDBY/ONFLV301Vin1VRdnVRupVREC2A CE, CLK, DATAA CE, CLK, DATACLK, DATAVREC1/VCRSW317REC SEL/RESETPD+12sVccPRPSREMPRIPRDCBin, Ain/D-REC1/D-REC2/R2MUENLENR/MUTERY B, RY A, RY HP-PDon, CDonPDon, CDonRY PSPOMUTUNERPACIC507VIDEOSEL(MONI)IC508VIDEOSEL(REC)IC506I
2、C50210dBQ503, 504IC405MOTORDRIVEVR401BASSVR405VOLUMEIC401SW402PUREDIRECTSW318InputSelPROTECTIONQ127-129Q132-137D107, 110,113-115, 126, 128IC301-COMIC503InputSelectorIC504RecoutSelectorDVDPDXinXoutKYAD1, KYAD2PWSWT MU, T CE, T DO, STEREO, TUNEDTUNERD-TVVCRIC506: EQ AMPIC502: CD DIRECT AMPIC509-512 :
3、BUFFER AMPPHONOMONITOROUTVCROUTZONE2OUTTUNERCDRIAAIC5090dBDVDIC5100dBD-TVIC406IC501BUFFERBUFFERIC5110dBVCRTAPE/MDOUT/D-REC2IC5120dBTAPE/MDQ505, 506VCROUT/D-REC1Q311, 312ZONE2OUT/R2MUVR403BALANCEPRE-MAINCOUPLERVR404LOUDNESSVR402TREBLESW401CD DIRECTAMPPower Amp35dBQ103-126,D101-106RY101RY104Q142F101D1
4、20D116-11912000/6312000/63Q145, D131Q130, D121Q131,D122+ASPEAKERSAC INRY102+RY103BPHONESSPEAKERSAB+12s-B-27VPRPS+B-15PRPS+15REGREGRESET+5V REGQ305OPERATION KEYSW301-306, 307-315VRGVRPREG+LBU301REMOTEINOUTREMOTECONTROL+5V REGQ306+12VVIDEO+LB+12VTUNERQ308,D308Q313,D316Q516,D502REGREG+5VTUNERREGMAIN Se
5、e page 28 SCHEMATIC DIAGRAMOPERATION See page 26, 27 SCHEMATIC DIAGRAMINPUT See page 25 SCHEMATIC DIAGRAMINPUT See page 25 SCHEMATIC DIAGRAMwewerq1458?23!4!59 %7ty01&6%8%9&567&1&2&09!1!2w5!7!874u!03!6*0o&8&9!90qw$0$1-5 %7-0!5!3!4!5!3!4!5tyw!0uetqI BLOCK DIAGRAM2423RadioFans.CN 收音机爱 好者资料库RX-777RX-777
6、I WARNINGComponents having special characteristics are marked Z and must bereplaced with parts having specifications equal to those originally in-stalled.GCarbon resistors (1/6W or 1/4W) are not included in the ELECTRICALPARTS List. For the parts No. of the carbon resistors, refer to last page.ABBRE
7、VIATIONS IN THIS LIST ARE AS FOLLOWS:C.A.EL.CHP: CHIP ALUMI.ELECTROLYTIC CAPC.CE: CERAMIC CAPC.CE.ARRAY : CERAMIC CAP ARRAYC.CE.CHP: CHIP CERAMIC CAPC.CE.ML: MULTILAYER CERAMIC CAPC.CE.M.CHP: CHIP MULTILAYER CERAMIC CAPC.CE.SAFTY: RECOGNIZED CERAMIC CAPC.CE.TUBLR: CERAMIC TUBULAR CAPC.CE.SMI: SEMI C
8、ONDUCTIVE CERAMIC CAPC.EL: ELECTROLYTIC CAPC.MICA: MICA CAPC.ML.FLM: MULTILAYER FILM CAPC.MP: METALLIZED PAPER CAPC.MYLAR: MYLAR FILM CAPC.MYLAR.ML : MULTILAYER MYLAR FILM CAPC.PAPER: PAPER CAPACITORC.PLS: POLYSTYRENE FILM CAPC.POL: POLYESTER FILM CAPC.POLY: POLYETHYLENE FILM CAPC.PP: POLYPROPYLENE
9、FILM CAPC.TNTL: TANTALUM CAPC.TNTL.CHP: CHIP TANTALUM CAPC.TRIM: TRIMMER CAPCN: CONNECTORCN.BS.PIN: CONNECTOR,BASE PINCN.CANNON: CONNECTOR,CANNONCN.DIN: CONNECTOR,DINCN.FLAT: CONNECTOR,FLAT CABLECN.POST: CONNECTOR,BASE POSTCOIL.MX.AM: COIL,AM MIXCOIL.AT.FM: COIL,FM ANTENNACOIL.DT.FM: COIL,FM DETECTC
10、OIL.MX.FM: COIL,FM MIXCOIL,OUTPT: OUTPUT COILDIOD.ARRAY : DIODE ARRAYDIODE.BRG: DIODE BRIDGEDIODE.CHP: CHIP DIODEDIODE.VAR: VARACTOR DIODEDIOD.Z.CHP: CHIP ZENER DIODEDIODE.ZENR : ZENER DIODEDSCR.CE: CERAMIC DISCRIMINATORFER.BEAD: FERRITE BEADSFER.CORE: FERRITE COREFET.CHP: CHIP FETFL.DSPLY: FLUORESC
11、ENT DISPLAYFLTR.CE: CERAMIC FILTERFLTR.COMB: COMB FILTER MODULEFLTR.LC.RF: LC FILTER,EMIGND.MTL: GROUND PLATEGND.TERM: GROUND TERMINALHOLDER.FUS : FUSE HOLDERIC.PRTCT: IC PROTECTORJUMPER.CN: JUMPER CONNECTORJUMPER.TST : JUMPER,TEST POINTL.DTCT: LIGHT DETECTING MODULEL.EMIT: LIGHT EMITTING MODULELED.
12、DSPLY: LED DISPLAYLED.INFRD: LED,INFRAREDMODUL.RF: MODULATOR,RFPHOT.CPL: PHOTO COUPLERPHOT.INTR: PHOTO INTERRUPTERPHOT.RFLCT : PHOTO REFLECTORPIN.TEST: PIN,TEST POINTPLST.RIVET: PLASTIC RIVETR.ARRAY: RESISTOR ARRAYR.CAR.: CARBON RESISTORR.CAR.CHP: CHIPRESISTORR.CAR.FP: FLAME PROOF CARBON RESISTORR.F
13、US: FUSABLE RESISTORR.MTL.CHP: CHIP METAL FILM RESISTORR.MTL.FLM: METAL FILM RESISTORR.MTL.OXD: METAL OXIDE FILM RESISTORR.MTL.PLAT: METAL PLATE RESISTORRSNR.CE: CERAMIC RESONATORRSNR.CRYS: CRYSTAL RESONATORR.TW.CEM: TWIN CEMENT FIXED RESISTORR.WW: WIRE WOUND RESISTORSCR.BND.HD : BIND HEAD B-TITE SC
14、REWSCR.BW.HD: BW HEAD TAPPING SCREWSCR.CUP: CUP TITE SCREWSCR.TERM: SCREW TERMINALSCR.TR: SCREW,TRANSISTORSUPRT.PCB: SUPPORT,P.C.B.SURG.PRTCT : SURGE PROTECTORSW.TACT: TACT SWITCHSW.LEAF: LEAF SWITCHSW.LEVER: LEVER SWITCHSW.MICRO: MICRO SWITCHSW.PUSH: PUSH SWITCHSW.RT.ENC: ROTARY ENCODERSW.RT.MTR: R
15、OTARY SWITCH WITH MOTORSW.RT: ROTARY SWITCHSW.SLIDE: SLIDE SWITCHTERM.SP: SPEAKER TERMINALTERM.WRAP : WRAPPING TERMINALTHRMST.CHP : CHIP THERMISTORTR.CHP: CHIP TRANSISTORTR.DGT: DIGITAL TRANSISTORTR.DGT.CHP : CHIP DIGITAL TRANSISTORTRANS: TRANSFORMERTRANS.PULS : PULSE TRANSFORMERTRANS.PWR: POWER TRA
16、NSFORMER ASSYTUNER.AM: TUNER PACK,AMTUNER.FM: TUNER PACK,FMTUNER.PK: FRONT-ENDTUNER PACKVR: ROTARY POTENTIOMETERVR.MTR: POTENTIOMETER WITH MOTORVR.SW: POTENTIOMETER WITH ROTARY SWVR.SLIDE: SLIDE POTENTIOMETERVR.TRIM: TRIMMER POTENTIOMETERNote) Those parts marked with “#” are not included in the P.C.
17、B. assy.PARTS LISTI ELECTRICAL PARTS29RadioFans.CN 收音机爱 好者资料库RX-777RX-777SchmRef.PART NO.Description6 New PartsSchmRef.PART NO.Description6 New Parts30*V7167900P.C.B.INPUT(UCA)CB501VK027000CN.BS.PIN11PCB502Vi878900CN.BS.PIN11P*CB503VK028000WIRE TRAP15P SECB504VQ961300CN.BS.PIN10PCB505VQ961200CN.BS.P
18、IN9PCB507VQ961100CN.BS.PIN8PCB511VQ961100CN.BS.PIN8PC501VG278400C.CE.TUBLR220pF 50VC502VG278400C.CE.TUBLR220pF 50VC503VG278400C.CE.TUBLR220pF 50VC504VG278400C.CE.TUBLR220pF 50VC505VK533900C.PP100pF 200VC506VK533900C.PP100pF 200VC507UA655100C.MYLAR0.1uF 50VC508VF467000C.CE.TUBLR1000pF 50VC509VF466800
19、C.CE.TUBLR100pF 50VC510VF466800C.CE.TUBLR100pF 50VC511VF466800C.CE.TUBLR100pF 50VC512VF466800C.CE.TUBLR100pF 50VC513VF466800C.CE.TUBLR100pF 50VC514VF466800C.CE.TUBLR100pF 50VC515VF466800C.CE.TUBLR100pF 50VC516VF466800C.CE.TUBLR100pF 50VC517VF466800C.CE.TUBLR100pF 50VC518VF466800C.CE.TUBLR100pF 50VC5
20、19VF466800C.CE.TUBLR100pF 50VC520VF466800C.CE.TUBLR100pF 50VC521VF467000C.CE.TUBLR1000pF 50VC522UN865470C.EL0.47uF 50VC523UU137100C.EL10uF 16VC524UU137100C.EL10uF 16VC525VG287600C.EL100uF 25VC526VG287600C.EL100uF 25VC527UU166470C.EL4.7uF 50VC528UU166470C.EL4.7uF 50VC529UU118330C.EL330uF 6.3VC530UU11
21、8330C.EL330uF 6.3VC531VF466900C.CE.TUBLR470pF 50VC532VF466900C.CE.TUBLR470pF 50VC533VG287800C.EL330uF 16VC534VG287800C.EL330uF 16VC535UU138100C.EL100uF 16VC536UU138100C.EL100uF 16VC537UU137100C.EL10uF 16VC538UU137100C.EL10uF 16VC541UU137100C.EL10uF 16VC542UU137100C.EL10uF 16VC543UA654100C.MYLAR0.01u
22、F 50VC544UA654100C.MYLAR0.01uF 50VC545VG287800C.EL330uF 16VC546VG287800C.EL330uF 16VC547UU137100C.EL10uF 16VC548UU137100C.EL10uF 16VC549UA654100C.MYLAR0.01uF 50VC550UA654100C.MYLAR0.01uF 50VC553VG287600C.EL100uF 25VC554VG287600C.EL100uF 25VC555UA652220C.MYLAR220pF 50VC556UA652220C.MYLAR220pF 50VC557
23、UA655100C.MYLAR0.1uF 50VC558VF466800C.CE.TUBLR100pF 50VC559VF466800C.CE.TUBLR100pF 50VC560UR837100C.EL10uF 16VC561UR819100C.EL1000uF 6.3VC562UR837100C.EL10uF 16VC563UR819100C.EL1000uF 6.3VC564UR837100C.EL10uF 16VC565UR819100C.EL1000uF 6.3VC566VG286300C.EL220uF 10VC567VG286300C.EL220uF 10VC568UA65433
24、0C.MYLAR0.033uF 50VC569UA654330C.MYLAR0.033uF 50VC570UA653910C.MYLAR9100pF 50VC571UA653910C.MYLAR9100pF 50VC572UU137100C.EL10uF 16VC573VG287600C.EL100uF 25VC574VG287600C.EL100uF 25VC575VG287200C.EL10uF 50VC576VG287200C.EL10uF 50VC577UU137100C.EL10uF 16VC578UU137100C.EL10uF 16VC579UA653470C.MYLAR4700
25、pF 50VC580UA653470C.MYLAR4700pF 50VC581VJ599100C.CE.TUBLR0.1uF 50VC582VJ599100C.CE.TUBLR0.1uF 50VC583UU137100C.EL10uF 16VC584UU137100C.EL10uF 16VC585UR837100C.EL10uF 16VC586UR838330C.EL330uF 16VC587VF466700C.CE.TUBLR47pF 50VC588UU137100C.EL10uF 16VC589UU137100C.EL10uF 16VC590UU137100C.EL10uF 16VC591
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